The browser add-on “Privacy Badger” (https://privacybadger.org/) blocks trackers such as googleads.g.doubleclick.net and static.doubleclick.net on the app’s website (https://open-archive.org/save). This could be due to the fact that the Google Play Store and other sites are linked on the page. Nevertheless, this is a red flag and 1 block can therefore be deducted. The app also offers to connect via Dropbox, which is also a commercial solution. Nevertheless, Save can be added to the directory.